39985720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21269}}^1$

素因数の和:21327

約数の個数: 32

約数和(自身を含む): 91886400

約数和(自身を除く): 51900680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 21269, 42538, 85076, 106345, 170152, 212690, 425380, 850760, 999643, 1999286, 3998572, 4998215, 7997144, 9996430, 19992860, 39985720]

約数ペア:

[(1, 39985720), (2, 19992860), (4, 9996430), (5, 7997144), (8, 4998215), (10, 3998572), (20, 1999286), (40, 999643), (47, 850760), (94, 425380), (188, 212690), (235, 170152), (376, 106345), (470, 85076), (940, 42538), (1880, 21269)]